A DSLR or CSC camera will give you much more control over how your finished images will look. Some high-end compacts will also offer some control, but a DSLR or CSC will give you a far greater creative control. Bear this in mind when buying a camera – think about your future needs.
Modes are normally changed by turning a dial on the top plate of the camera. Here is a dial on one of my cameras, yours may differ slightly but the basics will remain the same.